diff --git a/.github/workflows/all.yml b/.github/workflows/all.yml
index ce6c69efa9a..dabbbceed91 100644
--- a/.github/workflows/all.yml
+++ b/.github/workflows/all.yml
@@ -349,7 +349,10 @@ jobs:
     env:
       VERSION: ${{ needs.configure.outputs.version }}
     steps:
+      - name: Download source code archive
+        run: curl -fsSL "${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}/archive/${VERSION}.tar.gz" -o "${VERSION}.tar.gz"
       - name: Set up Homebrew
         uses: Homebrew/actions/setup-homebrew@2eb78889a50ba021d744837934f1af2d8c4458ec
       - name: Create version bump PR
-        run: brew bump-formula-pr k6 --tag="$VERSION" --revision="$GITHUB_SHA"
+        run: brew bump-formula-pr k6 --url="${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}/archive/${VERSION}.tar.gz" \
+               --sha256="$(shasum -a 256 ${VERSION}.tar.gz | cut -d' ' -f1)"